Control valves

Details Control valves Control valves

1977-05-31

1978-06-20

Cohan, Alan

Fluid handling

Systems

Supply and exhaust

137860, F15B 1302

Patent

active

040956172

ABSTRACT:
A pressure compensated directional control valve is provided which automatically regulates the position of the valve depending upon the load so as to maintain a constant flow of fluid by means of check valve members in the spool in the form of a resilient or flexible band in a groove surrounding the valve spool and covering the outer ends of the radial passages from the internal spool chambers.

REFERENCES:
patent: 2671466 (1954-03-01), Conrad
patent: 3565110 (1971-02-01), Hodgson
patent: 3707988 (1973-01-01), Hodgson
patent: 3782404 (1974-01-01), Hodgson

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